9p: virtio: make sure 'offs' is initialized in zc_request
[ Upstream commit 4a73edab69d3a6623f03817fe950a2d9585f80e4 ] Similarly to the previous patch: offs can be used in handle_rerrors without initializing on small payloads; in this case handle_rerrors will not use it because of the size check, but it doesn't hurt to make sure it is zero to please scan-build. This fixes the following warning: net/9p/trans_virtio.c:539:3: warning: 3rd function call argument is an uninitialized value [core.CallAndMessage] handle_rerror(req, in_hdr_len, offs, in_pages); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -394,7 +394,7 @@ p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req,
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struct page **in_pages = NULL, **out_pages = NULL;
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struct page **in_pages = NULL, **out_pages = NULL;
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struct virtio_chan *chan = client->trans;
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struct virtio_chan *chan = client->trans;
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struct scatterlist *sgs[4];
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struct scatterlist *sgs[4];
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size_t offs;
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size_t offs = 0;
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int need_drop = 0;
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int need_drop = 0;
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int kicked = 0;
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int kicked = 0;
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